目的分析细支气管肺泡癌（BAC）的CT征象，以提高其CT诊断准确性。
全腺泡型肺气肿发生时则出现从呼吸性细支气管到肺泡的腺泡所有部分全部扩张。
1·Breathing difficulties include shortness of breath, coughing, rattling and wheezing, normally as a result of the narrowing of the bronchiole tubes.
包括呼吸困难，呼吸急促，咳嗽，剧烈震动和喘息，通常是由于缩小的细支气管管。
2·Although the bacteria were not detected in lung, the pathologic changes were obvious such as abruption of microvilli from bronchiole and the necrosis area in lung.
肺部虽未找到细菌，但发现有明显的病变存在，如细支气管的微绒毛脱落，并可见坏死区。